Cylinder lock



Patented July 17, 1923.

arras stares rama MARTIN J'. OGONNOR, 0F OGDEN, UTAH.

CYLINDER LOCK.

Application led May 16,

To all 'whom t may concern.'

Be it known that I, MARTIN J. OCoNNoR, a citizen of the United States, residing at Ogden, in the county of Weber and State of Utah, have invented certain new and useful Improvements in Cylinder Locks; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to cylinder locks and more particularly to locks of this type which are adaptable for fitting to doors of various thicknesses, and the object of my invention is to provide such a lock with improved and simple means whereby the length of the lock may be' adjusted 'to appropriateposition and automatically locked in such position after the cylinder has been screwed into the lock case, such means forming an integral part of the lock elements.

In the drawings, Figure l is a view in side elevation showing the cylinder and tumbler casing in extended position, parts being shown broken away. Figure 2 shows the cylinder and casing completely tele scoped. Figure 3 is a top plan view. Figures 4 and 5l are cross sectional views on lines 4 4 and 5 5, respectively, Figure 3. Figure 6 is a perspective view showing the cylinder casing separated.

My improved lock includes a face plate l to the rear of which is secured the tumbler casing 2 superposed on which are ribs 3 and 4 and 5 which serve as supports for a cylinder 6. Seated upon the upper side of each of the ribs 3 and 5 is a spring dog 7 the upwardly extending portion of which is apertured to receive a notched pin 8 projecting forwardly from the closed end 9 of the cylinder. The latter has longitudinally extending cut out portions 10 through which access may be had to press the spring dog so as to disengage it from the notches of the pin in order to withdraw the tumbler casing from the cylinder. To prevent the complete disengagement of these parts I provide a cotter l2 at the end of each pin 8.

The tumbler casing 2 being telescoped within the cylinder 6, as shown in Figure 1922. Serial No. 561,270.

2, pressure on the spring dogs 7 to disengage them from their respective pins 8 will permit relative extension between the cylinder and casing, as shown in Figure 3. In this extended position, the cylinder is screwed into the lock and the face plate l with the tumbler casing is then pushed inwardly until up to the face of the door to which it is attached, the spring dogs 7 freely riding over the notches of the pins 8 in this inward movement. When the parts are so telescoped they are automatically locked and cannot be separated while in position on the door.

I claim as my invention:

l. In a lock including a tumbler casing and a telescoping cylinder therefor, said cylinder being adapted to be screwed into a lock case, means in part carried by said tumblerI casing and in part by said cylinder for automatically locking said casing and said cylinder such means permitting longitudinal movement in one direction only beyand a telescoping cylinder therefor, a pair of spring dogs superposed on said casing, and notched members carried by said cylinder with which said spring dogs engage tol 5. In a lock including a tumbler casing and a telescoping cylinder therefor, said cylinder being closed at one end and having longitudinal cut outs, a notched pin projecting p from the closed end of said cylinder in line said longitudinal cut-outs permitting accessv with each of said cut outs, a pair of spring to said dogs to manually disengage them pressed dogs superposed on said tumbler from vsaid pins t0 separate the casing and 10 casing adapted t0 interlock with Said cylinder preparatory to ttng the lock. notched pn tepermt longitudinal move- `41n; testmpny'v5/*hereof` Iwhave this ,ment n"one'direeton'only between Skal-d casspecification'.

t ing and cylinder in the fitting of the 100k, MARTIN'LT. OCONNOR. 

